/* roulang page: index */
:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #818cf8;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --bg: #f6f7fb;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e6e8f0;
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
  --shadow: 0 6px 28px rgba(15, 23, 42, .08);
  --shadow-lg: 0 12px 48px rgba(15, 23, 42, .12);
  --header-h: 74px;
  --max-w: 1240px;
  --transition: .25s cubic-bezier(.4, 0, .2, 1);
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}
ul,
ol {
  list-style: none;
}
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.5;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid rgba(79, 70, 229, .35);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(79, 70, 229, .28);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 70, 229, .36);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(79, 70, 229, .04);
}
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .6);
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, .12);
  border-color: #fff;
}
.btn-lg {
  padding: 14px 36px;
  font-size: 16px;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(245, 158, 11, .3);
}
.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}
.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(79, 70, 229, .08);
  color: var(--primary);
  border: 1px solid rgba(79, 70, 229, .14);
}
.badge-accent {
  background: rgba(245, 158, 11, .1);
  color: var(--accent-dark);
  border-color: rgba(245, 158, 11, .18);
}
/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(79, 70, 229, .35);
}
.logo-text {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.5px;
  background: linear-gradient(135deg, var(--text), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  color: var(--text-muted);
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--text);
  background: rgba(79, 70, 229, .06);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
  background: rgba(79, 70, 229, .1);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box input {
  width: 180px;
  padding: 9px 16px 9px 38px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 14px;
  transition: var(--transition);
}
.search-box input:focus {
  width: 220px;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, .12);
  background: #fff;
}
.search-box .search-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  font-size: 14px;
  pointer-events: none;
}
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat, var(--primary-dark);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 23, 42, .85) 0%, rgba(15, 23, 42, .55) 50%, rgba(79, 70, 229, .3) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 80px 0;
  color: #fff;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .15);
  border: 1px solid rgba(255, 255, 255, .25);
  font-size: 14px;
  font-weight: 500;
  backdrop-filter: blur(8px);
  margin-bottom: 24px;
}
.hero h1 {
  font-size: 54px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.hero h1 span {
  color: var(--accent);
}
.hero p {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .85);
  max-width: 540px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, .16);
}
.hero-stat .num {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
}
.hero-stat .label {
  font-size: 14px;
  color: rgba(255, 255, 255, .7);
}
/* ---- Section ---- */
.section {
  padding: 88px 0;
}
.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 52px;
}
.section-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(79, 70, 229, .08);
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.5px;
  margin-bottom: 14px;
  color: var(--text);
}
.section-head p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}
/* ---- Features ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 40px 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover::after {
  opacity: 1;
}
.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  background: rgba(79, 70, 229, .1);
  color: var(--primary);
}
.feature-card:nth-child(2) .feature-icon {
  background: rgba(245, 158, 11, .12);
  color: var(--accent-dark);
}
.feature-card:nth-child(3) .feature-icon {
  background: rgba(16, 185, 129, .12);
  color: #059669;
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
}
/* ---- Category Cards ---- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.category-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-lg);
}
.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.category-card:hover img {
  transform: scale(1.06);
}
.category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0, 0, 0, .75) 100%);
  z-index: 1;
}
.category-info {
  position: relative;
  z-index: 2;
  padding: 32px;
  color: #fff;
  width: 100%;
}
.category-info .badge {
  background: rgba(255, 255, 255, .18);
  color: #fff;
  border-color: rgba(255, 255, 255, .28);
  margin-bottom: 12px;
}
.category-info h3 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 8px;
}
.category-info p {
  color: rgba(255, 255, 255, .8);
  font-size: 15px;
  margin-bottom: 16px;
  max-width: 360px;
}
.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  color: #fff;
  transition: gap .3s;
}
.category-link i {
  font-size: 14px;
}
.category-card:hover .category-link {
  gap: 14px;
}
/* ---- Post List ---- */
.post-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.post-item {
  display: flex;
  gap: 20px;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.post-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.post-thumb {
  width: 120px;
  height: 96px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
}
.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.post-item:hover .post-thumb img {
  transform: scale(1.08);
}
.post-body {
  flex: 1;
  min-width: 0;
}
.post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.post-meta .badge {
  padding: 3px 10px;
  font-size: 11px;
}
.post-date {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}
.post-date i {
  font-size: 12px;
}
.post-body h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-body h3 a:hover {
  color: var(--primary);
}
.post-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 24px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  color: var(--text-muted);
  font-size: 16px;
}
/* ---- Stats ---- */
.stats-section {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  top: -100px;
  right: -80px;
}
.stats-section::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .04);
  bottom: -120px;
  left: -60px;
}
.stats-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item .num {
  font-size: 42px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.stat-item .label {
  font-size: 14px;
  color: rgba(255, 255, 255, .75);
  letter-spacing: 1px;
}
/* ---- Steps ---- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.step-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
}
.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}
.step-num {
  width: 52px;
  height: 52px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(79, 70, 229, .3);
}
.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.step-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}
/* ---- FAQ ---- */
.faq-grid {
  max-width: 820px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}
.faq-item {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 28px 32px;
  transition: var(--transition);
}
.faq-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(79, 70, 229, .2);
}
.faq-item h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.faq-item h3::before {
  content: 'Q';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(79, 70, 229, .1);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}
.faq-item p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
  padding-left: 38px;
}
/* ---- CTA ---- */
.cta-section {
  position: relative;
  text-align: center;
  padding: 96px 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat, var(--primary-dark);
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, .75);
}
.cta-content {
  position: relative;
  z-index: 1;
  color: #fff;
  max-width: 640px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -.5px;
}
.cta-content p {
  font-size: 17px;
  color: rgba(255, 255, 255, .85);
  margin-bottom: 32px;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
/* ---- Footer ---- */
.site-footer {
  background: #0f172a;
  color: rgba(255, 255, 255, .75);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo-text {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  background: none;
  -webkit-text-fill-color: #fff;
}
.footer-brand p {
  font-size: 15px;
  line-height: 1.7;
  margin-top: 16px;
  color: rgba(255, 255, 255, .6);
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  margin-bottom: 12px;
}
.footer-contact i {
  color: var(--accent);
  width: 16px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 22px 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, .45);
}
.footer-bottom a {
  color: rgba(255, 255, 255, .65);
}
.footer-bottom a:hover {
  color: var(--accent);
}
/* ---- Mobile Nav ---- */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  background: var(--surface);
  z-index: 200;
  padding: 24px;
  box-shadow: -8px 0 32px rgba(0, 0, 0, .12);
  transform: translateX(100%);
  transition: transform .35s cubic-bezier(.4, 0, .2, 1);
}
.mobile-menu.open {
  transform: translateX(0);
}
.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}
.mobile-close {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  color: var(--text);
}
.mobile-menu .nav-link {
  display: block;
  padding: 14px 16px;
  font-size: 16px;
  border-radius: 12px;
  margin-bottom: 6px;
}
.mobile-menu .nav-link.active {
  background: rgba(79, 70, 229, .08);
}
.mobile-menu .btn {
  width: 100%;
  margin-top: 12px;
}
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .4);
  z-index: 150;
}
.mobile-overlay.active {
  display: block;
}
/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
  }
  .search-box {
    display: none;
  }
}
@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .hero {
    min-height: 520px;
  }
  .hero h1 {
    font-size: 38px;
  }
  .hero p {
    font-size: 16px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .category-grid {
    grid-template-columns: 1fr;
  }
  .post-list {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .faq-item {
    padding: 22px 20px;
  }
  .faq-item p {
    padding-left: 0;
  }
  .main-nav,
  .header-actions .btn-outline,
  .header-actions .btn-primary {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .hero-actions .btn {
    flex: 1;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .hero {
    min-height: 460px;
  }
  .hero h1 {
    font-size: 30px;
  }
  .hero-stats {
    gap: 20px;
    flex-direction: column;
    gap: 12px;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .post-item {
    flex-direction: column;
  }
  .post-thumb {
    width: 100%;
    height: 180px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stat-item .num {
    font-size: 32px;
  }
  .cta-content h2 {
    font-size: 28px;
  }
  .cta-actions .btn {
    flex: 1 1 100%;
  }
}

/* roulang page: category1 */
:root {
  --primary: #6C4DF6;
  --primary-light: #E4DEFB;
  --primary-dark: #4C2ED3;
  --secondary: #F59E0B;
  --secondary-light: #FDF1D7;
  --dark: #0F172A;
  --gray-600: #475569;
  --gray-400: #94A3B8;
  --gray-200: #E2E8F0;
  --bg-light: #F8FAFC;
  --bg-white: #FFFFFF;
  --text-main: #0F172A;
  --text-sub: #475569;
  --text-light: #94A3B8;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
  --shadow-md: 0 8px 28px rgba(15, 23, 42, .08);
  --shadow-lg: 0 18px 48px rgba(15, 23, 42, .12);
  --transition: all .28s cubic-bezier(.4, 0, .2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

img {
  max-width: 100%;
  display: block;
  height: auto;
}

button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

i {
  font-style: normal;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, .8);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 28px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, #8B5CF6 100%);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(108, 77, 246, .35);
}

.logo-text {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--primary-dark), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  position: relative;
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: var(--radius-full);
  background: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-light);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  width: 190px;
  transition: var(--transition);
}

.search-box:focus-within {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(108, 77, 246, .08);
}

.search-box i {
  color: var(--text-light);
  font-size: 14px;
}

.search-box input {
  width: 100%;
  font-size: 13px;
  color: var(--text-main);
  background: transparent;
}

.search-box input::placeholder {
  color: var(--text-light);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #8B5CF6);
  color: #fff;
  box-shadow: 0 4px 14px rgba(108, 77, 246, .3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(108, 77, 246, .4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(108, 77, 246, .3);
}

.btn-outline {
  border: 1.5px solid var(--gray-200);
  color: var(--text-sub);
  background: #fff;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--text-main);
  border: 1px solid var(--gray-200);
  background: #fff;
  font-size: 18px;
}

.menu-toggle.open .fa-bars {
  display: none;
}

.menu-toggle.open .fa-xmark {
  display: block;
}

.menu-toggle .fa-xmark {
  display: none;
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 45%, #312E81 100%);
  overflow: hidden;
  padding: 80px 0 90px;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: .22;
}

.page-hero::after {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139, 92, 246, .35) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, .65);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, .8);
  transition: var(--transition);
}

.breadcrumb a:hover {
  color: var(--secondary);
}

.breadcrumb i {
  font-size: 11px;
  opacity: .7;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, .15);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, .9);
}

.hero-badge i {
  color: var(--secondary);
  font-size: 12px;
}

.page-hero .hero-title {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.page-hero .hero-title span {
  background: linear-gradient(120deg, #A78BFA, #F59E0B);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn-white {
  background: #fff;
  color: var(--dark);
  box-shadow: 0 4px 16px rgba(255, 255, 255, .2);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, .3);
}

.btn-ghost {
  border: 1.5px solid rgba(255, 255, 255, .35);
  color: #fff;
  background: rgba(255, 255, 255, .06);
  backdrop-filter: blur(6px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .6);
}

/* ===== Sections ===== */
.section {
  padding: 80px 0;
}

.section-bg {
  background: #fff;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-eyebrow .icon {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  display: inline-block;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-title em {
  font-style: normal;
  color: var(--primary);
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* ===== Intro ===== */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.intro-media {
  position: relative;
}

.intro-media .main-image {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.intro-media .main-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .6s ease;
}

.intro-media:hover .main-image img {
  transform: scale(1.03);
}

.intro-media::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: 30px;
  bottom: 30px;
  border: 2px solid var(--primary-light);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.float-card {
  position: absolute;
  bottom: -26px;
  right: -18px;
  background: #fff;
  border-radius: 16px;
  padding: 16px 22px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 14px;
}

.float-card .float-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--secondary), #FBBF24);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
}

.float-card .float-text strong {
  display: block;
  font-size: 16px;
  color: var(--text-main);
}

.float-card .float-text span {
  font-size: 13px;
  color: var(--text-light);
}

.intro-content h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 18px;
  line-height: 1.4;
}

.intro-content p {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.9;
  margin-bottom: 16px;
}

.intro-list {
  list-style: none;
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.intro-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.6;
}

.intro-list li i {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 11px;
  margin-top: 4px;
}

/* ===== Feature Cards ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), #8B5CF6);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card .card-image {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
}

.feature-card .card-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform .5s ease;
}

.feature-card:hover .card-image img {
  transform: scale(1.05);
}

.feature-card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 18px;
}

.feature-card h4 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.card-link i {
  font-size: 12px;
  transition: transform .28s ease;
}

.card-link:hover i {
  transform: translateX(4px);
}

/* ===== Steps ===== */
.steps-section {
  background: linear-gradient(180deg, #fff 0%, var(--bg-light) 100%);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--primary), var(--primary-light));
  z-index: 0;
  opacity: .6;
}

.step-item {
  position: relative;
  z-index: 1;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.step-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.step-num {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--primary), #8B5CF6);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(108, 77, 246, .25);
}

.step-item h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-item p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* ===== Tips List ===== */
.tips-wrapper {
  max-width: 860px;
  margin: 0 auto;
}

.tips-list {
  display: grid;
  gap: 18px;
}

.tip-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 26px 28px;
  transition: var(--transition);
}

.tip-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateX(5px);
}

.tip-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tips-list .tip-content {
  flex: 1;
}

.tip-content h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}

.tip-content p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.tip-content .tip-meta {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-light);
}

.tip-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.tip-meta i {
  font-size: 11px;
}

.tips-cta {
  margin-top: 36px;
  text-align: center;
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-full);
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  background: transparent;
  transition: var(--transition);
}

.more-link:hover {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(108, 77, 246, .3);
  transform: translateY(-2px);
}

/* ===== FAQ ===== */
.faq-section {
  background: #fff;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  background: #fff;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--primary);
}

.faq-item.open {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  background: transparent;
  transition: var(--transition);
}

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: transform .35s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}

.faq-answer-inner {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: 90px 0;
  position: relative;
  overflow: hidden;
}

.cta-inner {
  position: relative;
  padding: 68px 48px;
  border-radius: 24px;
  background: linear-gradient(120deg, #1E1B4B 0%, #312E81 55%, #4C2ED3 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  box-shadow: var(--shadow-lg);
}

.cta-inner::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -40px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 158, 11, .4), transparent 70%);
}

.cta-inner::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: 30%;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, .5), transparent 70%);
}

.cta-text {
  position: relative;
  z-index: 2;
  color: #fff;
}

.cta-text h3 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}

.cta-text p {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .8);
  max-width: 480px;
}

.cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex-shrink: 0;
}

.cta-actions .btn {
  min-width: 180px;
}

/* ===== Footer ===== */
.site-footer {
  background: #0B1220;
  color: rgba(255, 255, 255, .7);
  padding: 70px 0 0;
  border-top: 1px solid rgba(255, 255, 255, .06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 50px;
}

.footer-brand .logo-text {
  font-size: 24px;
  background: linear-gradient(120deg, #A78BFA, #F59E0B);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
  display: inline-block;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .6);
  max-width: 300px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: .02em;
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--secondary);
  padding-left: 4px;
}

.footer-contact {
  list-style: none;
  display: grid;
  gap: 14px;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
}

.footer-contact li i {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  font-size: 13px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .07);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .header-actions .search-box {
    display: none;
  }

  .intro-grid {
    gap: 36px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

  .steps-grid::before {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
  }

  .footer-brand {
    grid-column: span 3;
  }

  .cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .cta-text p {
    margin: 0 auto;
  }

  .cta-actions {
    flex-direction: row;
  }
}

@media (max-width: 768px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .site-header {
    height: auto;
  }

  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 14px 0;
    gap: 12px;
  }

  .main-nav {
    order: 3;
    flex: 0 0 100%;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    gap: 6px;
  }

  .nav-link {
    padding: 8px 16px;
    font-size: 14px;
    white-space: nowrap;
  }

  .header-actions .btn {
    padding: 8px 16px;
    font-size: 13px;
  }

  .page-hero {
    padding: 60px 0 70px;
  }

  .page-hero .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 27px;
  }

  .intro-grid {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .float-card {
    bottom: -18px;
    right: 8px;
    padding: 12px 16px;
  }

  .feature-card {
    padding: 24px;
  }

  .steps-grid {
    gap: 18px;
  }

  .step-item {
    padding: 24px 18px;
  }

  .step-num {
    width: 52px;
    height: 52px;
    font-size: 17px;
  }

  .tip-item {
    flex-direction: column;
    gap: 14px;
    padding: 22px;
  }

  .tip-num {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  .cta-inner {
    padding: 48px 28px;
  }

  .cta-text h3 {
    font-size: 26px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 520px) {
  .header-actions .btn-outline {
    display: none;
  }

  .header-actions .btn-primary {
    padding: 8px 14px;
    font-size: 13px;
  }

  .page-hero .hero-title {
    font-size: 26px;
  }

  .hero-badge {
    font-size: 12px;
    padding: 5px 10px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .section-title {
    font-size: 23px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: span 1;
  }

  .search-box {
    display: none;
  }
}

@media (max-width: 360px) {
  .logo-text {
    font-size: 18px;
  }

  .header-actions .btn-primary {
    font-size: 12px;
    padding: 7px 12px;
  }
}

/* roulang page: article */
:root {
    --primary: #C89B3C;
    --primary-dark: #A87F2D;
    --primary-light: #E4C26A;
    --ink: #1A1A22;
    --ink-dark: #101014;
    --gray-700: #2D2D36;
    --gray-600: #4A4A54;
    --gray-500: #6E6E78;
    --gray-300: #D6D6DD;
    --gray-100: #F2F2F6;
    --bg-soft: #F8F6F1;
    --white: #FFFFFF;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-full: 999px;
    --shadow-sm: 0 2px 8px rgba(16, 16, 20, 0.06);
    --shadow-md: 0 8px 28px rgba(16, 16, 20, 0.08);
    --shadow-lg: 0 18px 50px rgba(16, 16, 20, 0.12);
    --container: 1200px;
    --space-section: 96px;
    --transition: all .25s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--ink);
    background: var(--white);
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; position: relative; }
::selection { background: var(--primary-light); color: var(--ink-dark); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.section { padding: var(--space-section) 0; }
.section-muted { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow { display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--primary); margin-bottom: 10px; }
.section-title { font-size: 2.3rem; font-weight: 800; line-height: 1.3; margin: 0 0 14px; }
.section-sub { color: var(--gray-500); font-size: 1.06rem; margin: 0; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 26px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: .95rem;
    line-height: 1.4;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(200, 155, 60, .35); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(200, 155, 60, .45); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--gray-300); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); background: rgba(200, 155, 60, .08); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .55); }
.btn-outline:hover { background: rgba(255, 255, 255, .12); border-color: #fff; color: #fff; }
.btn-lg { padding: 15px 40px; font-size: 1.05rem; }
.badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(200, 155, 60, .14); color: var(--primary-dark); font-weight: 700; font-size: .78rem; padding: 5px 14px; border-radius: var(--radius-full); letter-spacing: .02em; }
.tag { display: inline-block; background: var(--bg-soft); color: var(--gray-600); font-size: .8rem; padding: 6px 14px; border-radius: var(--radius-full); border: 1px solid var(--gray-300); transition: var(--transition); }
.tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, .92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(0, 0, 0, .06); }
.header-inner { display: flex; align-items: center; gap: 24px; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, var(--primary-light), var(--primary)); color: #fff; font-size: 14px; box-shadow: 0 4px 12px rgba(200, 155, 60, .35); }
.logo-text { font-size: 1.3rem; font-weight: 800; letter-spacing: .02em; color: var(--ink-dark); white-space: nowrap; }
.logo-text span { color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.nav-link { position: relative; padding: 10px 18px; font-weight: 600; font-size: .95rem; color: var(--gray-600); border-radius: var(--radius-full); transition: var(--transition); }
.nav-link:hover { color: var(--ink-dark); background: var(--gray-100); }
.nav-link.active { color: var(--primary-dark); background: rgba(200, 155, 60, .12); }
.header-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.search-box { display: flex; align-items: center; gap: 8px; background: var(--gray-100); border-radius: var(--radius-full); padding: 9px 16px; border: 1px solid transparent; transition: var(--transition); }
.search-box:focus-within { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(200, 155, 60, .12); }
.search-box i { color: var(--gray-500); font-size: .85rem; }
.search-box input { border: none; background: transparent; padding: 0; font-size: .9rem; width: 120px; color: var(--ink); }
.search-box input::placeholder { color: var(--gray-500); }
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; border-radius: 8px; margin-left: auto; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: var(--transition); }

/* Article Hero */
.article-hero { position: relative; padding: 160px 0 110px; background: linear-gradient(135deg, rgba(16, 16, 20, .9), rgba(48, 40, 20, .68)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; color: #fff; overflow: hidden; }
.article-hero::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 80px; background: linear-gradient(to bottom, rgba(16,16,20,0), rgba(16,16,20,.45)); pointer-events: none; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: .88rem; color: rgba(255, 255, 255, .65); margin-bottom: 28px; }
.breadcrumb a { color: rgba(255, 255, 255, .8); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb .current { color: var(--primary-light); font-weight: 600; }
.article-hero h1 { font-size: 2.8rem; font-weight: 800; line-height: 1.3; margin: 0 0 20px; max-width: 840px; letter-spacing: .01em; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.meta-time { display: inline-flex; align-items: center; gap: 6px; font-size: .9rem; color: rgba(255, 255, 255, .7); }
.meta-time i { color: var(--primary-light); }
.meta-category { display: inline-block; background: rgba(200, 155, 60, .22); color: var(--primary-light); font-weight: 700; font-size: .78rem; padding: 4px 14px; border-radius: var(--radius-full); }

/* Article Layout */
.article-layout { padding: 72px 0 88px; background: var(--white); }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 56px; align-items: start; }
.article-main { min-width: 0; }
.article-content { font-size: 1.05rem; line-height: 1.85; color: var(--gray-700); }
.article-content p { margin: 0 0 1.65em; }
.article-content h2 { font-size: 1.55rem; font-weight: 800; margin: 2.2em 0 1em; padding-left: .75rem; border-left: 4px solid var(--primary); line-height: 1.4; color: var(--ink-dark); }
.article-content h3 { font-size: 1.28rem; font-weight: 700; margin: 2em 0 .8em; color: var(--ink-dark); }
.article-content h4 { font-size: 1.1rem; font-weight: 700; margin: 1.6em 0 .6em; color: var(--ink-dark); }
.article-content ul, .article-content ol { margin: 1.2em 0; padding-left: 1.7em; }
.article-content ul li, .article-content ol li { margin-bottom: .5em; }
.article-content ul li::marker { color: var(--primary); }
.article-content ol li::marker { color: var(--primary); font-weight: 700; }
.article-content img { max-width: 100%; height: auto; border-radius: var(--radius-md); margin: 1.7em 0; box-shadow: var(--shadow-md); }
.article-content blockquote { border-left: 4px solid var(--primary); background: var(--bg-soft); padding: 1.3em 1.6em; border-radius: 0 var(--radius-md) var(--radius-md) 0; margin: 1.7em 0; color: var(--gray-600); font-style: italic; }
.article-content blockquote p { margin-bottom: .6em; }
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content a { color: var(--primary-dark); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--primary); }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.7em 0; }
.article-content th, .article-content td { border: 1px solid var(--gray-300); padding: 12px 16px; text-align: left; }
.article-content th { background: var(--bg-soft); font-weight: 700; }
.article-content pre { background: var(--ink-dark); color: #e8e8e8; padding: 1.4em; border-radius: var(--radius-md); overflow-x: auto; font-size: .9rem; margin: 1.7em 0; }
.article-content code { background: var(--gray-100); padding: 2px 8px; border-radius: 4px; font-size: .9em; }
.article-content pre code { background: transparent; padding: 0; }
.share-bar { display: flex; align-items: center; gap: 10px; margin-top: 42px; padding-top: 28px; border-top: 1px solid var(--gray-100); }
.share-bar span { font-weight: 600; color: var(--gray-600); font-size: .92rem; }
.share-item { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: var(--radius-full); background: var(--bg-soft); color: var(--gray-600); border: 1px solid var(--gray-300); font-size: .95rem; transition: var(--transition); }
.share-item:hover { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(200, 155, 60, .3); }

/* Sidebar */
.article-sidebar { display: flex; flex-direction: column; gap: 28px; }
.side-card { background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-sm); transition: var(--transition); }
.side-card:hover { box-shadow: var(--shadow-md); }
.side-title { font-size: .85rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-dark); margin: 0 0 20px; padding-bottom: 14px; border-bottom: 2px solid var(--gray-100); display: flex; align-items: center; gap: 8px; }
.side-title i { color: var(--primary); }
.side-info p { font-size: .92rem; color: var(--gray-500); margin: 0 0 12px; line-height: 1.7; }
.side-info p:last-child { margin-bottom: 0; }
.side-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
.stat-item { background: var(--bg-soft); border-radius: var(--radius-md); padding: 14px 12px; text-align: center; }
.stat-item strong { display: block; font-size: 1.25rem; color: var(--primary-dark); }
.stat-item span { font-size: .78rem; color: var(--gray-500); }
.latest-list { list-style: none; margin: 0; padding: 0; }
.latest-list li { border-bottom: 1px solid var(--gray-100); padding: 14px 0; }
.latest-list li:first-child { padding-top: 0; }
.latest-list li:last-child { border-bottom: none; padding-bottom: 0; }
.latest-list a { display: block; }
.latest-list a:hover .latest-title { color: var(--primary); }
.latest-title { display: block; font-weight: 600; font-size: .95rem; color: var(--ink-dark); line-height: 1.45; transition: var(--transition); }
.latest-meta { display: block; font-size: .78rem; color: var(--gray-500); margin-top: 6px; }
.latest-meta i { margin-right: 4px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-cloud a { display: inline-block; }

/* News / Latest Section */
.news-section { padding: var(--space-section) 0; background: var(--bg-soft); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid rgba(0,0,0,.04); box-shadow: var(--shadow-sm); transition: var(--transition); display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.news-thumb { display: block; position: relative; padding-top: 60%; overflow: hidden; background: var(--gray-100); }
.news-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(16,16,20,.25), transparent 60%); pointer-events: none; }
.news-category { position: absolute; left: 16px; top: 16px; z-index: 2; background: rgba(255, 255, 255, .92); color: var(--primary-dark); font-size: .75rem; font-weight: 700; padding: 4px 12px; border-radius: var(--radius-full); backdrop-filter: blur(8px); box-shadow: 0 2px 8px rgba(0,0,0,.08); }
.news-body { padding: 24px 24px 20px; display: flex; flex-direction: column; flex: 1; }
.news-body h3 { font-size: 1.1rem; font-weight: 700; line-height: 1.5; margin: 0 0 10px; }
.news-body h3 a { color: var(--ink-dark); }
.news-body h3 a:hover { color: var(--primary-dark); }
.news-body p { font-size: .92rem; color: var(--gray-500); line-height: 1.7; margin: 0 0 18px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-date { display: inline-flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--gray-500); margin-top: auto; }
.news-date i { color: var(--primary); }
.empty-tip { text-align: center; padding: 60px 20px; color: var(--gray-500); font-size: 1.05rem; grid-column: 1 / -1; }
.empty-tip i { display: block; font-size: 2.4rem; color: var(--primary); margin-bottom: 16px; }

/* FAQ */
.faq-section { padding: var(--space-section) 0; }
.faq-grid { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition); }
.faq-item:hover { border-color: rgba(200, 155, 60, .3); box-shadow: var(--shadow-md); }
.faq-item summary { display: flex; align-items: center; gap: 14px; padding: 22px 26px; font-weight: 700; color: var(--ink-dark); cursor: pointer; list-style: none; font-size: 1.02rem; transition: var(--transition); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: '＋'; display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; border-radius: 50%; background: var(--bg-soft); color: var(--primary); font-weight: 700; font-size: .95rem; flex-shrink: 0; transition: var(--transition); }
.faq-item[open] summary::before { content: '－'; background: var(--primary); color: #fff; transform: rotate(180deg); }
.faq-item[open] summary { color: var(--primary-dark); }
.faq-item[open] summary::before { transform: rotate(0); }
.faq-item p { margin: 0; padding: 0 26px 24px 66px; color: var(--gray-500); line-height: 1.8; font-size: .95rem; }

/* CTA */
.cta-section { position: relative; padding: 88px 0; background: linear-gradient(135deg, rgba(16,16,20,.92), rgba(48,40,20,.75)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; color: #fff; text-align: center; }
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 2.2rem; font-weight: 800; margin: 0 0 16px; }
.cta-section p { font-size: 1.1rem; color: rgba(255, 255, 255, .75); margin: 0 0 34px; max-width: 660px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; }

/* Not Found */
.not-found-section { padding: 100px 0; text-align: center; }
.not-found-icon { font-size: 3rem; color: var(--primary); margin-bottom: 24px; display: inline-block; }
.not-found-section h2 { font-size: 1.9rem; font-weight: 800; margin: 0 0 14px; }
.not-found-section p { color: var(--gray-500); font-size: 1.06rem; margin: 0 0 34px; }

/* Footer */
.site-footer { background: var(--ink-dark); color: rgba(255, 255, 255, .65); padding: 76px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; margin-bottom: 52px; }
.footer-brand .logo-text { color: #fff; margin-bottom: 18px; }
.footer-brand .logo-text span { color: var(--primary-light); }
.footer-brand p { font-size: .9rem; line-height: 1.75; margin: 0; max-width: 260px; }
.footer-title { color: #fff; font-size: 1rem; font-weight: 700; margin: 0 0 20px; }
.footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: .9rem; color: rgba(255, 255, 255, .6); transition: var(--transition); }
.footer-links a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-contact { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; font-size: .9rem; color: rgba(255, 255, 255, .6); }
.footer-contact li { display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--primary); width: 16px; text-align: center; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 28px; text-align: center; font-size: .85rem; color: rgba(255, 255, 255, .4); }

/* Responsive */
@media (max-width: 1024px) {
    .article-grid { grid-template-columns: minmax(0, 1fr) 320px; gap: 40px; }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
    .search-box input { width: 80px; }
    .header-actions .btn-ghost { padding: 9px 18px; }
    .header-actions .btn-primary { padding: 9px 18px; }
}
@media (max-width: 768px) {
    :root { --space-section: 64px; }
    .section-title { font-size: 1.7rem; }
    .article-hero { padding: 120px 0 72px; }
    .article-hero h1 { font-size: 1.9rem; }
    .article-layout { padding: 48px 0 64px; }
    .article-grid { grid-template-columns: 1fr; gap: 40px; }
    .article-sidebar { order: -1; }
    .menu-toggle { display: block; }
    .main-nav { position: fixed; inset: 72px 0 auto 0; background: #fff; flex-direction: column; align-items: stretch; padding: 20px 24px 28px; gap: 6px; box-shadow: 0 16px 40px rgba(0,0,0,.08); transform: translateY(-120%); opacity: 0; pointer-events: none; transition: transform .3s ease, opacity .3s ease; border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
    .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .nav-link { padding: 14px 20px; font-size: 1.02rem; }
    .header-actions { gap: 8px; }
    .header-actions .btn-ghost { display: none; }
    .header-actions .btn-primary { padding: 8px 14px; font-size: .85rem; }
    .search-box { display: none; }
    .news-grid { grid-template-columns: 1fr; gap: 20px; }
    .footer-grid { grid-template-columns: 1fr; gap: 36px; margin-bottom: 36px; }
    .footer-brand p { max-width: 100%; }
    .cta-actions { flex-direction: column; align-items: center; }
    .cta-actions .btn { width: 100%; max-width: 320px; }
}
@media (max-width: 520px) {
    .container { padding: 0 18px; }
    .logo-text { font-size: 1.1rem; }
    .header-inner { height: 62px; }
    .menu-toggle { position: absolute; right: 14px; }
    .header-inner { display: flex; align-items: center; gap: 16px; }
    .logo { margin-right: auto; }
    .btn-primary { padding: 9px 16px; font-size: .85rem; }
    .main-nav { inset: 62px 0 auto 0; }
    .article-hero h1 { font-size: 1.6rem; }
    .breadcrumb { font-size: .8rem; }
    .faq-item summary { padding: 18px 18px; font-size: .95rem; }
    .faq-item p { padding: 0 18px 20px 54px; font-size: .9rem; }
    .news-body { padding: 18px 18px 16px; }
    .section-title { font-size: 1.45rem; }
    .article-content { font-size: 1rem; }
    .article-content h2 { font-size: 1.35rem; }
    .share-bar { flex-wrap: wrap; }
}